A Comparison of the Pharmacokinetic Properties of ARN-75039 Tablets With Excipients to Neat ARN-75039 in Hydroxypropyl Methylcellulose (HPMC) Capsules in Healthy Adult Participants Under Fed Conditions

Phase

Condition

N/A

Treatment

ARN-75039

Clinical Study ID

NCT06911242

ARN-75039-103

Ages 18-45
All Genders
Accepts Healthy Volunteers

Study Summary

ARN-75039-103 is a comparative, randomized, single-dose, crossover study to assess the PK, safety, and tolerability of neat ARN-75039 in hydroxypropyl methylcellulose (HPMC) capsules against ARN 75039 with excipients in tablet form administered by the oral route in healthy adult participants. The safety assessments will include standard evaluations of vital signs, clinical laboratory values, and ECGs.

Participants will be admitted to the study site on the morning of Day -1, prior to Period 1 study drug administration, and will remain on site until Day 15. Upon confirmation of eligibility, participants will be randomized into the study on Day 1. Study drug administration will be performed on the first day of Periods 1 and 2 (Study Days 1 and 8, respectively) with a 7-day washout period between the two periods. Participants will receive the randomized study drug in the morning following a meal. A total of 16 participants will be randomized 1:1 to the following two sequences:

Sequence 1:
- Period 1: Neat ARN-75039 in HPMC capsules (reference product)
- Period 2: ARN-75039 with excipients in tablet form (comparator)
Sequence 2:
- Period 1: ARN-75039 with excipients in tablet form (comparator)
- Period 2: Neat ARN-75039 in HPMC capsules (reference product)

Participation in the study will be conducted in the following 5 defined periods:

Screening Period: The Screening Period begins upon completion of the informed consent form (ICF). During this period, participants will undergo baseline assessments to determine eligibility for study participation. The Screening Period duration will be up to 21 days; it will end after all evaluations required to meet eligibility have been completed. If a participant meets all eligibility criteria, they will be offered enrollment into the study.
Admission to Study Site: Participants will be admitted to the study site in the morning on the day prior to dosing of period 1 (Day -1). Participants that are eligible to participate in the study and are randomized into the study will remain at the study site until completion of the treatment period (Study Day 15).
Treatment Period: This study consists of two treatment days separated by a 7-day washout period. The first treatment day will begin on Day 1 of Period 1 with administration of the first dose of study drug. The second treatment day will occur on the first day of Period 2 (Study Day 8). Following the dosing of the study drug on each treatment day, fifteen venous blood samples will be withdrawn via an indwelling cannula or by venipuncture at regular time intervals.
End of Active Treatment (Day 15 Discharge Visit or Early Termination (ET) Visit): Upon successful completion of active treatment, participants will be discharged from the study site on Study Day 15. The Discharge Visit will include the completion of safety assessments, such as a physical examination, vitals, ECG recording, adverse event review, and clinical laboratory tests. Participants who complete both dosing days will be encouraged to complete all study visits.

Participants who do not complete all study visits or terminate from the study prior to Day 15 will be asked to complete the Early Termination Visit within 1 day after withdrawal from the study.

• Day 36 Telephone Follow Up Phone Call: Participants will be contacted by phone on Day 36-i.e., 28 days following the last study dose administered on Day 8. The purpose of this follow-up call is to assess for any adverse events.

Eligibility Criteria

Inclusion

Inclusion Criteria:

Participants meeting all the following criteria are eligible for study participation:

Is male or female, age 18 to 45 years, inclusive, at Screening.
Body mass index (BMI) between 18 and 35 kg/m2, inclusive, at Screening.
In good general health, determined by no clinically significant findings in theopinion of the Investigator from medical history, physical examination, 12-lead ECG,clinical laboratory findings, and vital signs at Screening and Day -1 or 1.
Hemoglobin, hematocrit, white blood cell count, absolute neutrophil count, andplatelet count results within the laboratory reference range at Screening or withoutclinically significant abnormalities in the opinion of the Investigator;participants with Gilbert's disease with associated abnormalities of liver functiontests are eligible for enrollment. Tests may be repeated at the discretion of theInvestigator to confirm abnormalities.
Estimated glomerular filtration rate (eGFR) based on the Chronic Kidney DiseaseEpidemiology Collaboration (CKD-EPI) equation of ≥ 80 mL/min/1.73 m2 at Screening.
Females of childbearing potential must practice effective contraception per nationalregulatory guidelines for clinical trials from Screening (see Section 5.6.2),throughout the study, and for 60 days after the last dose of study drug.
Females must have a negative pregnancy test at Screening and within 24 hours priorto dosing of study drug; for post-menopausal participants, a blood sample will alsobe tested for estradiol and follicle stimulating hormone (FSH) to confirmpost-menopausal status based on reference laboratory ranges for post-menopausalstatus. Surgically sterile females are eligible; however, proof via medical recordswill be required.
Males must agree to not donate sperm and to use condom and spermicide in combinationwith any of the means of contraception for their female partners during sexualintercourse from the time of the first study drug administration and for 90 daysfollowing the last dose of study drug. Females must agree not to donate eggs fromthe time of the first study drug administration and for 60 days following the lastdose of study drug.
Must be willing and able to comply with measures to avoid photosensitivity reactions (i.e., avoidance of outdoor sun exposure and tanning; consistent use of long sleeveshirts, long pants, hats, and sunglasses; consistent use of sun protection factor [SPF] 75 or greater sunscreen when outdoors) during the study treatment period.
Able to consume a standard meal (400-600 Calories) within 30 minutes.
Able to provide informed consent.
Willing and able to comply with this protocol and be available for the entireduration of the study.

Exclusion

Exclusion Criteria:

Participants meeting any of the following criteria are not eligible for study participation:

Any clinically significant underlying illness in the opinion of the Investigator.
Poor venous access.
Prior exposure to ARN-75039.
History of drug or alcohol abuse within 1 year of Screening in the opinion of theinvestigator, or a positive test for drugs of abuse or alcohol at Screening or Day -1.
Use of any prescription or over-the-counter (OTC) medications, including foodsupplements, vitamins, herbal medications (e.g., St. John's wort), and cannabis,with the exception of contraceptive medications and as needed (prn) acetaminophen orparacetamol (not exceeding 2 grams/day) within 7 days prior to study drugadministration and through the Day 15 Discharge visit.
Any female who is pregnant or breastfeeding, or any female who is planning to becomepregnant during the study and safety follow-up period.
Currently enrolled in another investigational device or drug study, or less than 30days or 5 half-lives of the prior investigational agent (whichever is longer) orplans to enroll in another investigational device or drug study during the course ofthis study.
Inability to ingest all capsules/tablets of a multi-capsule dose within 5 minutes ofingestion of the first capsule/tablet.
Positive serology for hepatitis B virus (HBV), hepatitis C virus (HCV), or humanimmunodeficiency virus (HIV) at Screening; participants with adequately treated HCVare eligible for enrollment.
Consumption of Seville oranges, grapefruit or grapefruit juice within 72 hours priorto Day 1 or during the study.
History of malignancy, except adequately treated basal cell carcinoma or in situcarcinoma of the uterine cervix.
Smoking cigarettes, cigars, cigarillos or E-cigarettes
Any reason or condition that, in the investigator's opinion, may compromise studyparticipation, present a safety risk to the participant, or may confound theinterpretation of the study results.
A QT duration corrected for heart rate by Fridericia's formula (QTcF) > 450millisecond (msec) based on either single or averaged QTcF values of triplicate ECGsobtained over a 3-minute interval (at Screening).
Blood product (including plasma) donation within 30 days before Screening.
Unwilling to consume a breakfast on study drug administration days.
History of:

Structural abnormality of the GI tract or a disease or history of a conditionthat can affect GI motility.
Inflammatory bowel disease (even if treated and currently in remission).
Diverticulitis or any other chronic condition such as chronic pancreatitis,polycystic kidney disease, ovarian cysts, endometriosis, lactose intolerancethat can be associated with abdominal pain or discomfort and could confound theassessments in this trial.
Chronic idiopathic diarrhea.

Formally diagnosed colonic inertia or conditions that can be associated withconstipation: pseudo-obstruction, colonic inertia, megacolon, megarectum, bowelobstruction, descending perineum syndrome, solitary rectal ulcer syndrome, systemicsclerosis, lower tract evacuation disorders, functional outlet delay (e.g., rectalprolapse, anismus, etc.).
Current active peptic ulcer disease (i.e., disease that is not adequately treated orstable with therapy.)
Potential central nervous system cause of constipation (e.g., Parkinson's disease,spinal cord injury, and multiple sclerosis).
Participant currently has both unexplained and clinically significant alarm symptoms (lower GI bleeding [rectal bleeding or heme-positive stool], iron-deficiency anemiaor any unexplained anemia, or weight loss) or systemic signs of infection orcolitis.
History of chronic/generalized pruritus and/or skin rash of unknown origins.
Participants with diagnosed Type 1 or Type 2 diabetes, or with a fasting bloodglucose value > 125 mg/dL during the screening period.

Study Design

ARN-75039

March 17, 2025

April 21, 2025

Connect with a study center

Frontage
Secaucus, New Jersey 07094
United States
Site Not Available

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